Identification of healthy versus unhealthy substrate for pacing from a multipolar lead
First Claim
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1. A system comprising:
- a processor receiving means for receiving a torso-surface potential signal from each of a plurality of electrodes distributed on a torso of a patient;
a processor means for extracting features of the potential signal from each of the plurality of electrodes;
a storing means for storing the features;
a processor means for determining a scar indicator index for each of the plurality of electrodes from the stored features, identifying ones of the plurality of electrodes having an affirmative scar indicator index, and determining an overall scar burden index as a proportion of the plurality of electrodes with an affirmative scar indicator index.
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Abstract
A medical device system performs a method determining presence of scar tissue. Torso-surface potential signals are received by a processor from multiple electrodes distributed on a torso of a patient. The processor extracts features of the potential signal from each electrode and stores values of the features in a non-transitory storage medium. The processor determines a scar indicator index for each of the electrodes from the stored features and identifies which ones of the electrodes have an affirmative scar indicator index. An overall scar burden index is determined as a proportion of the electrodes with an affirmative scar indicator index.
278 Citations
22 Claims
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1. A system comprising:
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a processor receiving means for receiving a torso-surface potential signal from each of a plurality of electrodes distributed on a torso of a patient; a processor means for extracting features of the potential signal from each of the plurality of electrodes; a storing means for storing the features; a processor means for determining a scar indicator index for each of the plurality of electrodes from the stored features, identifying ones of the plurality of electrodes having an affirmative scar indicator index, and determining an overall scar burden index as a proportion of the plurality of electrodes with an affirmative scar indicator index. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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receiving by a processor a torso-surface potential signal from each of a plurality of electrodes distributed on a torso of a patient; extracting by the processor features of the potential signal from each of the plurality of electrodes; storing values of the features in a non-transitory storage medium; determining by the processor a scar indicator index for each of the plurality of electrodes from the stored features; identifying ones of the plurality of electrodes having an affirmative scar indicator index; and determining an overall scar burden index as a proportion of the plurality of electrodes with an affirmative scar indicator index. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A non-transitory, computer readable storage medium comprising instructions for causing a processor of a medical device system to perform a method, the method comprising:
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receiving a torso-surface potential signal from each of a plurality of electrodes distributed on a torso of a patient; extracting features of the potential signal from each of the plurality of electrodes; storing values of the features in a non-transitory storage medium; determining a scar indicator index for each of the plurality of electrodes from the stored features; identifying ones of the plurality of electrodes having an affirmative scar indicator index; and determining an overall scar burden index as a proportion of the plurality of electrodes with an affirmative scar indicator index.
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22. An apparatus for determining presence of myocardial scar tissue, comprising:
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sensing means for receiving a torso-surface potential signal from each of a plurality of electrodes distributed on a torso of a patient; processing means for extracting features of the potential signal from each of the plurality of electrodes; storing means for storing values of the features in a non-transitory storage medium; processing means for determining a scar indicator index for each of the plurality of electrodes from the stored features; processing means for identifying ones of the plurality of electrodes having an affirmative scar indicator index; and processing means for determining an overall scar burden index as a proportion of the plurality of electrodes with an affirmative scar indicator index.
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Specification